Listed at the National Archives as "Operation Greenhouse, 1952" but Operation Greenhouse was in 1951. No National Archives description. AEC "16mm film combined catalog" description: "Operation Greenhouse: Produced by the USAEC and the Lookout Mountain Air Force Station, USAF. For sale by DuArt Film Laboratories, at $79.67 per print. This nontechnical film, for intermediate through college-level audiences, describes joint USAEC and Department of Defense scientific and technical operations during proof-testing of weapons at the USAEC Pacific Proving Grounds during spring 1951. It shows the effects of blast and heat on structures, aircraft, and various other items used by the Department of Defense and Federal Civil Defense Administration." National Archives Identifier: 88211 source file isn't in the greatest shape.